Champion Spark Plug N12YC #38 Box PRODUCT DETAILS Dependable Performance - Features A Copper Core Electrode That Provides Increased Conductivity And Heat Control, Providing Good Overall Wear Characteristics. Product Features: Dependable and Durable. Built to ISO and SAE standards for proven performance. Provides Longer Life. Copper core center electrode allows for accurate control of heat range, optimizing the performance and longevity of the spark plug. SPECIFICATIONS Electrode Core Material: Nickel Copper Alloy Electrode Tip Material: Nickel Copper Alloy Ground Electrode Core Material: Nickel Copper Alloy Ground Strap Quantity: 1 Installed Height: 2.27 Insulator Material: Zirconia Enhanced Insulator Type: Zirconia Enhanced Manufacturer Heat Range: 12 Reach: 0.75 in Resistor: N Seat Type: Gasket Thread: 14 mm Tip Configuration: J Gap Type: N12YC Wrench Diameter: 13/16 Inch MPN: 38 UPC: 37551001477 Model: N12YC #38 Purchase is for one spark plug. USA domestic shipments are shipped USPS First Class Mail with Tracking International shipments are shipped USPS First Class International Mail with Tracking